The cool thing about the Guadiana River is that it actually forms a part of the border between the two great countries of Spain and Portugal. This is actually really cool. We definitely think that letting nature dictate where your country ends is underrated and something that other countries should consider adopting. What's depicted in this photograph is a vacation home located right on the Spanish side of the river.
Just look at the view. You can't say that this structure located on the riverbank doesn't make for one of the most beautiful border photos of all time.